Related Experiment Video
Updated: Feb 23, 2026
08:26
Development and Validation of an Ultrasensitive Single Molecule Array Digital Enzyme-linked Immunosorbent Assay for Human Interferon-α
Published on: June 14, 2018
12.6K
A comparative study on two radioimmunoassays with cloned human interferon-alpha
Journal of Biological Response Modifiers
|January 1, 1983
Summary
Two new radioimmunoassays for human interferon-alpha (HuIFN-alpha) were developed. These methods offer improved objectivity, reproducibility, and efficiency compared to traditional biological assays for quantifying HuIFN-alpha.
Area of Science:
- Immunology
- Biochemistry
- Molecular Biology
Background:
- Quantifying human interferon-alpha (HuIFN-alpha) is crucial for research and therapeutic applications.
- Existing biological assays for interferon quantification can lack objectivity and reproducibility.
Purpose of the Study:
- To develop and compare two novel radioimmunoassay (RIA) methods for quantifying cloned human interferon-alpha (leukocyte) [HuIFN-alpha(Le)].
- To assess the sensitivity, antibody economy, and speed of the developed RIA methods.
Main Methods:
- Development of a double-antibody radioimmunoassay.
- Development of a solid-phase radioimmunoassay.
- Comparative titration of human interferon-alpha-2 (HuIFN-alpha 2) using both methods.
Main Results:
- The double-antibody RIA is 200-fold more economical of antibody and fivefold more sensitive than the solid-phase RIA.
- The solid-phase RIA is significantly faster than the double-antibody RIA.
- A serum factor was identified that reduces maximal HuIFN-alpha 2 binding to antibodies.
Conclusions:
- Radioimmunoassays provide a more objective, reproducible, and efficient method for quantifying HuIFN-alpha polypeptides compared to biological assays.
- Both developed RIA methods are valuable tools for interferon research, with distinct advantages in sensitivity, speed, and resource utilization.
